Stainless Steel 321 Pipes are made up of chromium (17–19%), nickel (9–12%), and titanium (at least five times the carbon content) for stabilization. This alloy effectively prevents carbide precipitation, even after welding or when exposed to high temperatures. These pipes boast a tensile strength of 515 MPa, a yield strength of 205 MPa, and an elongation of about 35%. SS 321 also exhibits excellent resistance to creep and stress rupture, making it ideal for continuous high-temperature applications. The addition of titanium enhances stability and corrosion resistance during thermal cycling and in oxidative environments.
| Standard | ASTM A312, A358 / ASME SA312, SA358 |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated Pipes |
| Form | Round, Square, Rectangular, Oval, Hydraulic Etc |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Grade | C | N | Ni | Si | P | S | Mn | Cr | TI | |
|---|---|---|---|---|---|---|---|---|---|---|
| SS 321 | Min | – | – | 9.00 | – | – | – | – | 17.0 | 5(C+N) |
| max | 0.08 | 0.10 | 12.00 | 1.00 | 0.045 | 0.030 | 2.00 | 19.0 | 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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At Aditya Stainless, we are proud to be the largest supplier, manufacturer, and exporter of Stainless Steel 321 Pipes in Kolkata India. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the India, we maintain a vast inventory of over 16,000 tons of premium-quality materials, ensuring we have the stock readily available to meet your demands.
Corrosion resistant to high-temperature oxidation. Available in various sizes, typically from 1″ to 6″, with wall thicknesses ranging from 1.5mm to 5mm. It is ideal for structural and architectural applications requiring a polished, aesthetic appearance.
Highly resistant to intergranular corrosion and oxidation. Sizes range from 1/8″ to 24″ in diameter, with wall thicknesses from 1mm to 12mm. Suitable for high-temperature service and applications requiring high pressure.
Excellent resistance to oxidation and corrosion. Commonly produced in sizes from 1″ to 24″ in diameter, with wall thicknesses from 2mm to 10mm and used in construction and pipelines for moderate pressure and temperature conditions.
Corrosion resistant with enhanced strength for large diameter applications. Typically available in sizes from 12″ to 60″ diameter with wall thicknesses up to 20mm. It is ideal for high-pressure and high-temperature applications in the oil and gas industry.
Offers superior resistance to high-temperature oxidation and corrosion. Standard sizes range from 1/8″ to 12″ in diameter, with wall thicknesses from 1mm to 10mm. They are commonly used in various industrial and structural applications.
Corrosion resistance with good high-temperature stability. Available in sizes from 1″ to 24″ in diameter, with wall thicknesses ranging from 1.5mm to 12mm. Suitable for a variety of applications, including chemical and petrochemical industries.
Aditya Stainless is a leading supplier, and stockist of high-quality Stainless Steel 317 Pipes in Kolkata India. Our products are widely used in various applications, and we are committed to delivering excellent service, resulting in high customer satisfaction. Our unique finishing techniques further distinguish us in the stainless steel industry. We are dedicated to consistently providing superior products and effectively meeting our customer’s needs.
Stainless Steel 321 Pipes are commonly utilized in high-temperature settings where resistance to scaling and intergranular corrosion is crucial. They are found in heat exchangers, boiler components, exhaust manifolds, refineries, thermal power plants, and chemical processing industries. Additionally, they are used in aircraft exhaust systems, furnace parts, and superheater tubes, where performance under thermal stress is vital. Thanks to their excellent weldability and mechanical strength, SS 321 pipes are perfect for welded pressure vessels, nuclear reactors, and pharmaceutical equipment. Their durability and long lifespan make them a dependable choice.
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